Year = 2002
Month = August
Day = 18
Day-of-year = 230
Site = Poker Flat
Sunrise = 13:45
Sunset = 06:02
Moonrise = None
Moonset = None
Moon_age = 10
Aurora = Unknown
Cloud = Unknown
Magnetometer = Unknown
ASC = Unknown
MSP = Unknown
VHF_radar = Unknown
Electrojet = Unknown
SDI = Ran all night, unusable data
Bomem = Unknown
MSG = Unknown
Trailer = Unknown
UW_FPI = Unknown
CRL_NF_FPI = Unknown
CRL_AS_FPI = Unknown
Stratosperic_lidar = Unknown
Rayleigh_lidar = Unknown
Resonance_lidar = Unknown
Ebert = Unknown
Comments = Observing twilight sodium. Weak signal suggests cloud. Tonight is the first night for about 10 days during which the AC timer was not set to allow the shutter to open early enough. The first "sky" exposure is laser contaminated. 
MC 28-Aug-2002